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Burning-resistant conveyor belt covering rubber and preparation method thereof

A technology covering rubber and conveyor belts, applied in conveyors, transportation and packaging, etc., can solve the problems of low service life, low heat resistance, and inability to meet users' transportation of high-temperature materials, etc. The effect of improving the burn resistance

Inactive Publication Date: 2018-10-02
江苏凯嘉橡胶科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the rubber layer covering the working surface of the prior art of the burning-resistant conveyor belt has a certain burning resistance, it is still insufficient. The bonding strength of SBR rubber is 61.5kcal / mol, while the bonding strength of IIR and DPDM rubber is 80kcal / mol , SBR rubber is not as heat-resistant as CR, IIR, DPDM and other rubbers, and the actual service life is low, which still cannot meet the needs of users to transport high-temperature materials

Method used

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  • Burning-resistant conveyor belt covering rubber and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The formula ratio is based on parts by weight. The ratio of materials used is: chlorobutyl rubber: 70 parts, styrene-butadiene rubber: 30 parts, antioxidant RD: 2 parts, antioxidant 4010NA: 1.5 parts, antioxidant MB: 1 part, Indirect method zinc oxide: 10 parts, stearic acid: 1.5 parts, paraffin: 1 part, dispersant: 1.5 parts, antimony trioxide: 5 parts, chlorinated paraffin-52: 6 parts, refractory: 9 parts, Thermal conductive agent: 7 parts, tackifying resin: 10 parts, lubricant: 3 parts, accelerator MBS: 2 parts, aluminum hydroxide: 6 parts, activated clay: 10 parts, paraffin oil: 5 parts, N234 carbon black: 35 Parts, N330 carbon black: 15 parts, accelerator TMTD: 1.5 parts, sulfur: 0.8 parts.

[0024] In this embodiment, the thermal conductive agent is 4078, the dispersant is chewing agent FS-12, the paraffin oil is solar oil 2280, the lubricant is MB202, and melamine cyanurate (MCA) is used as nitrogen. It is a flame retardant product with the advantages of halogen-fr...

Embodiment 2

[0032] The formula ratio is based on parts by weight. The ratio of the materials used is:

[0033] Chlorinated butyl rubber: 90 parts, styrene butadiene rubber: 10 parts, antioxidant RD: 2 parts, antioxidant 4010NA: 1.5 parts, antioxidant MB: 1 part, indirect zinc oxide: 10 parts, stearic acid: 1 Parts, paraffin: 0.5 parts, dispersant: 2 parts, antimony trioxide: 6 parts, chlorinated paraffin-52: 5 parts, refractory: 8 parts, thermal conductive agent: 6 parts, tackifying resin: 12 parts, Lubricant: 5 parts, accelerator MBS: 1.5 parts, aluminum hydroxide: 8 parts, activated clay: 8 parts, paraffin oil: 4 parts, N234 carbon black: 30 parts, N330 carbon black: 20 parts, accelerator TMTD: 2 parts, sulfur: 0.6 parts.

[0034] In this embodiment, the thermal conductive agent is 4078, the dispersant is chewing agent FS-12, the paraffin oil is solar oil 2280, the lubricant is MB202, and melamine cyanurate (MCA) is used as nitrogen. It is a flame retardant product with the advantages of h...

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Abstract

The invention provides burning-resistant conveyor belt covering rubber including, by weight, 60-100 parts of chlorinated butyl rubber, 0-40 parts of butadiene styrene rubber, 1-3 parts of an anti-aging agent RD, 1-2 parts of an anti-aging agent 4010NA, 1-2 parts of an anti-aging agent MB, 8-10 parts of indirect zinc oxide, 1-3 parts of stearic acid, 0.5-1.5 parts of paraffin, 1-2 parts of a dispersant, 4-6 parts of Sb2O3, 5-7 parts of chlorinated paraffin-52, 7-10 parts of a fire retardant, 6-8 parts of a heat conductive agent, 8-12 parts of tackifying resin, 3-5 parts of a lubricant, 1-2 parts of an accelerant MBS, 3-8 parts of aluminum hydroxide, 8-10 parts of active pottery clay, 4-6 parts of paraffin oil, 35-45 parts of N234 carbon black, 10-20 parts of N330 carbon black, 1.5-2 parts of an accelerant TMTD and 0.5-0.8 parts of sulfur. According to basic principle of rubber mixing and the characters of the employed raw materials, the conveyor belt covering rubber is prepared; under different operation process, the performance of the produced rubber may be different. The conveyor belt covering rubber is improved in burning resistance.

Description

Technical field [0001] The invention relates to the field of rubber conveyor belts, in particular to a burn-resistant conveyor belt covering rubber and a preparation method thereof. Background technique [0002] Ignition-resistant conveyor belts are widely used in metallurgy, building materials, foundry, coking, chemical industries and other industries. They mainly transport high-temperature materials such as sintered ore, coke, pellets, etc. The general material temperature is above 200 ℃, sometimes accompanied by red ore, instantaneous temperature Up to 800°C. The burn-resistant conveyor belt is generally composed of a skeleton layer, a working surface, a non-working surface covering rubber layer and an edge rubber layer. It depends on the skeleton layer to bear the strength load during material transportation, while the working surface and non-working surface are covered with rubber layer and edge rubber. The layer protects the framework material layer. Due to the high tempe...

Claims

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Application Information

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IPC IPC(8): C08L23/28C08L9/06C08L91/06C08L45/02C08L57/02C08L61/06C08K13/02C08K3/22C08K5/09C08K3/34C08K3/04B65G15/32
CPCB65G15/32C08K2003/2227C08K2003/2296C08K2201/014C08L23/283C08L2201/08C08L2205/025C08L2205/035C08L9/06C08L91/06C08L45/02C08L57/02C08L61/06C08K13/02C08K3/22C08K5/09C08K3/2279C08K3/346C08K3/04
Inventor 沈王平何承霞施海萍张振秀沈玉海顾宇飞夏茂华
Owner 江苏凯嘉橡胶科技股份有限公司